US2943886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door opening mechanism for bottom dump vehicles
Assignee: International Motors LLC
•
Filing: 1957-01-16
•
Granted: 1960-07-05
•
Expires: 1977-01-16
Abstract
No abstract record available.
Inventors
- 👤 John R Wilkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:09
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/56; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/2042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US378272A
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US387415A
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US700767A
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US722299A
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US714286A
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US773093A
Cited
US933034A
Cited
US2237299A
Cited
US2524122A
Cited
US2760816A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |